Home / 252,121.58-347,927.78-138,944.33

Finding the Fourth Proportional to 252,121.58, 347,927.78 and 138,944.33

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Solution

The fourth proportional to 252,121.58, 347,927.78 and 138,944.33 is: 191,743.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,121.58 : 347,927.78 = 138,944.33 : x
  2. Step 2: Convert to fraction form
    252,121.58/347,927.78 = 138,944.33/x
  3. Step 3: Cross multiply
    252,121.58x = 347,927.78 × 138,944.33
  4. Step 4: Simplify right side
    252,121.58x = 48,342,593,497.67
  5. Step 5: Solve for x
    x = 48,342,593,497.67/252,121.58
  6. Step 6: Final answer
    x = 191,743.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.